Home / 681,853.79-1,022,780.59-647,759.39

Finding the Fourth Proportional to 681,853.79, 1,022,780.59 and 647,759.39

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Solution

The fourth proportional to 681,853.79, 1,022,780.59 and 647,759.39 is: 971,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,853.79 : 1,022,780.59 = 647,759.39 : x
  2. Step 2: Convert to fraction form
    681,853.79/1,022,780.59 = 647,759.39/x
  3. Step 3: Cross multiply
    681,853.79x = 1,022,780.59 × 647,759.39
  4. Step 4: Simplify right side
    681,853.79x = 662,515,724,348.94
  5. Step 5: Solve for x
    x = 662,515,724,348.94/681,853.79
  6. Step 6: Final answer
    x = 971,638.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.